Certificate of Analysis and technical specification for Dowex Mr-3 Mixed Bed Ion-Exchange Resin — CAS 103591-11-3. Applies to all consignments of this product and grade.
| Product Name | Dowex Mr-3 Mixed Bed Ion-Exchange Resin |
|---|---|
| C.A.S. Number | 103591-11-3 |
| Product Category | Polymers, Resins & Additives |
| Product Group | Monomers & Polymer Chemicals |
| Grade / Standard | Fine chemical grade — assay on specification |
| Physical Form | Appearance as per specification |
| Country of Origin | India |
| Packing | Standard export packing — bags, drums, carboys, IBC or ISO tank as applicable |
| Storage | Cool, dry, well-ventilated place in tightly closed original packing |
| S. No. | Test Parameter | Specification | Typical Result | Method |
|---|---|---|---|---|
| 1 | Description | Appearance as per specification | Complies | Visual |
| 2 | Identification | Conforms to the structure of the substance | Complies | FTIR / Chemical test |
| 3 | Solubility | As per specification | Complies | Visual / Monograph |
| 4 | Volatile Matter | Not more than 1.0 % w/w | 0.47 | Gravimetry |
| 5 | Ash Content | Not more than 0.5 % w/w | 0.210 | Gravimetry |
| 6 | Softening / Melting Point | As per specification | Conforms | ASTM D3461 / Capillary |
| 7 | Residue on 63 µm Sieve | Not more than 0.5 % | 0.163 | Sieve analysis |
| 8 | Heavy Metals (as Pb) | Not more than 20 ppm | Less than 10 ppm | ICP-OES |
| 9 | Moisture | Not more than 1.0 % w/w | 0.37 | Karl Fischer / Gravimetry |
This document sets out the standard specification for Dowex Mr-3 Mixed Bed Ion-Exchange Resin and applies to all consignments of this grade. It is not a lot-specific release document; a lot-specific certificate carrying the analysis of the material actually shipped is issued with each consignment. Scapex Exports supplies against customer-specified assay limits and pharmacopoeial standards — send your specification sheet and we will confirm compliance before order.
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